U.S. President Barack Obama has defended his signature healthcare overhaul ahead of a vote to repeal it in the House of Representatives. In a White House statement on Tuesday, Mr. Obama said because of the Affordable Care Act passed last year; Americans now have greater health security than they did a year ago. He said Small businesses across the country can take advantage of a new health care tax credit to offer coverage to their employees. A landmark legislation rammed through Congress by Obama and Democrats, the Affordable Care Act is facing a public backlash and Republican efforts to repeal it. Republicans are in control of the House but not the Senate, limiting their power to overturn the healthcare law. House Republicans have scheduled a vote on repealing the law today, which is likely to be only symbolic since Democrats still control the Senate. Even if it passes both chambers, Obama can still veto it.